Cylinder-drainer.



PATENTED NOV. 29, 1904.

A. G. HEWETT, CYLINDER DRAINER. APPLICATION FILED MAR, 30. 1904.

1-70 MODEL.

iillwirsi i Ajil'liil'llt lil'EWETI, F SGQRANITON, PEl ?N33.lo l/iii.NHL ASSiGNOlt TU h il CHiliEL E. MCUONALD, OF SCRANTQN, PENNS'. .lJVAl i'iA. v

QYLlNUEIN QMAiNEiEt Application lliad March 30, 195i ranie, have ii'ivente certain new improvements in U tinder-Draini the following is a specification im :1 "on relates to improvements in edt see for ste zrr-eyliriers whereby the valves 1 operated promptly to give re het' to t ZXl'litUE-iiend of the cylinder end live steam is prevented from escaping from the steam end of the cylinder. in the eceompsnying drawings, Figure 1 is elongit'udinal vertical section throughastearmengine cylinder and the drainage device conheated therewith, the upper portion or the cylinder being broken away. i Fig. 2 is it similar view of the cylinderdrainer on it larger scale/ trod Fig. is a sec .on on the line 3 of F's, 2 with the valve removed.

to the drawings, 31 indicates a. i-engine cylinder te which the drainage devise E is fifinlllifzifid by he dreimpipes 1 and 2, leading from the ends or the cylinder to the ends oi the dreinegewativecasing 3 The vnlvewssing in tubular in general form and divided into two similar ccmpertments a and. 5 in; a, double valve-sea rnrtition i, iittVl' I V irh eom'snisniei zrOlll'ittl? end. tl'ie competitrespectively. Velveeeets 5 end 4.3 are form, round the ports 5 and 6,

. and piston-valve 8 and 9 arranged Within the enmpertmente (t and .Y', are Edit-ii in opemtion to fit against their respective valve seats 5" end 6 alternately, and time open and. close the ports 5 and 6. T 1e piston-valves 8 and 9 fit closely Within cylindrical openlegs or bores 10 and 11,, which are formed in the compartments (t and 3), respectively, in line with one another. Stems 8* and 9 npnn the adjacent ends;- of the pi. one proieet through the per? h and 6 and abut against one another. These stems are of such le11 1 that wit hen one valve is seated the other will he forced oil 1: its fllhe valves normally centered by eprinr s 12.52. interposed heed iti'nwomh-x 29, 19%;1 Eleriel No. 200,315. (No r-nodeln tween the outer or rear e'hds ef the valves and tubular edju. nuts 13, Wi'lillil are screwed into the t en, ends i=1- ol the body oi the casing and form piirte oi- .the cesing.- These nuts or end pieces of the casing are .neotion with the drain-pines of a.- cylinder, and these openings are directly in the rear of the pistons, so hat the eteam entering the casing is applied (lift it to the pistons In order to conduct the drainage-water from the inlet-openings to the outlehopening Water body of the casing below the cylindrical openings 10 and 11 and connect the outer ends of the comp-er o with the ports 5 and 6 These passage-we eonduct the water from the rear to the fr e serve as pockets for dr Inge collecting in the compartments while tha elves are closed.

The operation will be: er from an inspection of Fig. 1. As soon steam is admitted to the left-hand end of th-idinder the vvalve 8 closed immediately by the direct applicetion of the st'eermpressure, and the valve 9 in the com pertinent connected with the exhaust end of the cylinder is simultaneously forced pissed-stroke, the d tin: through the p the pm we oi the wildest-steam. steam admitted to the right-hand end oi the cylimlcr the pressure through the pipe? closes the valve 5% and prevents the escape of steam and simnlteneonsl v epe'ns the valve in the coinpmrtnmnt c to permit the eeeztpo oi drainage-Water l'romthe left-hand end of the cylinder. The collection of drainage-wetter in the passage-ways or wallets l6 and 17 0hstructs the escape of steam past the ends of the valve when live steam ted to the comp and causes i to exert its full on the valves, cl0slog the valve on the steam side almost instantly and opening the valve on the-exhaust water flowing out a A port 6 under oi the cyiinde The ee ipe or live steer.

thus g neoticeliy prevent provided with threaded openings 15 for eorr open and remains open until the end of the steam 7 oassageways 16 and 13 are "formed in the side, giving instant relief to, the exl'inustend are given a quicker movement than heretofore the valve on the exhaust side is opened immediately; Whatever water is forced out of the Water-pocketsby thelive steam before the valves are seated carries with it the sedi ment collecting in the pockets and washes ofl the valveseats.

lindrical openings in said compartments in" line withsaid portsL-valve's fitting closely v tween said valves. and the ends of the casing;

within said cylindricalopenings and. preventing the passage of steam 'therethrongh, said valves having ..ab11'tting stems extending through said ports and springsarranged' besaid casing also having water passage-ways extending-around the valves'fromthe r rear to their front ends and connectingthe inletopenings with saidports.

2. In a cylinder-drainer, a hollow casing having openings for admitting steam and drainag -water into the ends of the casing, a central outlet-opening, valvewseat partitions in said casing dividing the casing into two compartments, said partitions having ports communicating'with said outlet-opening, cylindrical openings in said compartments in line with said. ports, Valves fittingv closely within said cylindrical openings and preventing the passage of steam therethrough, said valves having abutting stems extending through said ports and springs arranged between said valves and the ends of the casing,

saidcasing also having water passage-ways extending beneath the valves from their rear to their front ends and connecting .the inletopenings with said ports.

In testimony whereof I affixmy signature in presence of twowitnesses.

ARTHUR: G. HEWETT. Witnesses:

J OHN P. BUTLER,

MAX F. HENKELMAN. 

